I'd do a little more research first. Jeep does have high pinion axles, but what Sean is getting at is you're assuming the gears in a high pinion rotate in reverse, which would be wrong... do not confuse reverse cut with reverse rotation gears. In a high pinion axle, the gears are cut opposite of standard gears which makes them stronger in applications where the pinion is above the centerline, however, they rotate in the exact same direction as standard gears.

If you do what you say, you'll find yourself stuck driving around in reverse! If you want to convert a driver's drop front axle to passenger side, you need to be thinking retubing or selling it... flipping it isn't going to give you what you're after.

-Rob